MB3800 Fujitsu Microelectronics, Inc., MB3800 Datasheet - Page 3

• Manufacturer Part Number: MB3800
• Description: Switching Regulator Controller (low Voltage)
• Manufacturer: Fujitsu Microelectronics, Inc.

BLOCK DIAGRAM
–IN
FB
1
8
voltage supply
Reference
0.5 V
1.25 V
–
+
V
3
6
CC
Error Amp.
GND
36 k
0.6 V–
0.1 V–
500
Soft start SCP
2
OSC
SCP
7
0.1 V
DTC 0.6 V
Sawtooth wave
–
+
+
+
oscillator
PWM
Comp.
control circuit
Output drive
4
0.3 V
BR/CTL
30 k
5
MB3800
OUT
(8 pin)
3